ABSOLUTE MULTIPLE IONIZATION CROSS SECTIONS FOR IMPACT OF C3+ IN RARE GASES A. C. F. Santos, W. S. Melo, M. M. Sant'Anna, G. M. Sigaud, and E. C. Montenegro Departamento de F=EDsica, Pontif=EDcia Universidade Cat=F3lica do Rio de Janeiro, PUC-Rio, Cx. Postal 38071, Rio de Janeiro, RJ 22452-970, Brazil This work presents absolute cross sections for direct multiple ionization in collisions of C3+ projectiles impinging upon He, Ne, Ar, Kr, and Xe targets in the energy range from 1.3 to 3.5 MeV. We have analyzed our results as a function of the reduced parameters suggested by Janev and Presnuakov in the energy range studied in this work and a quite good agreement with the results from the literature for light targets atoms is found.